CN109664400A - Steel platform bracket lay-down location concrete warming and humidifying intensity curing means and method - Google Patents
Steel platform bracket lay-down location concrete warming and humidifying intensity curing means and method Download PDFInfo
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- CN109664400A CN109664400A CN201811630647.7A CN201811630647A CN109664400A CN 109664400 A CN109664400 A CN 109664400A CN 201811630647 A CN201811630647 A CN 201811630647A CN 109664400 A CN109664400 A CN 109664400A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A kind of steel platform bracket lay-down location concrete warming and humidifying intensity curing means of the invention, is related to Construction Technology of Super Tall Buildingin field.For the maintenance process of existing steel platform bracket lay-down location, difficulty of construction is big, the problem of being also easy to produce thermal cracking, and can not detect concrete strength.It includes: intensity detecting device, is set to the horizontal plane at steel platform bracket lay-down location hole, measures concrete velocity of wave and concrete strength is calculated;Heating and temperature controlling device is vertically arranged to Core Walls Structure wall side and covering hole periphery wall, for heating hole periphery walls concrete;Humidification controls wet device, is set in steel platform bracket lay-down location hole, is used for adjusting air humidity;At least one Temperature Humidity Sensor is set in steel platform bracket lay-down location hole, at least one Temperature Humidity Sensor is set in concrete walls body;Calculating center is controlled, wet device is controlled with heating and temperature controlling device, humidification respectively and multiple Temperature Humidity Sensor signals is connect.
Description
Technical field
The present invention relates to Construction Technology of Super Tall Buildingin field, in particular to a kind of steel platform bracket lay-down location concrete adds
Heat humidification intensity curing means and method.
Background technique
With the development of society, Super High mould bases construction technology from initial sliding formwork gradually to speed of application faster, safety
Property more preferable, globality more preferably integral steel platform mould bases develop, integral steel platform mould bases has become in contemporary super high-rise building most
For important one of construction sharp weapon.
Not only itself load is larger for integral steel platform mould bases, it is also necessary to undertake certain material, personnel, machinery etc.
Construction loads, therefore, it is necessary to the steel platform bracket lay-down locations of Core Walls Structure to be capable of providing biggish bearing capacity, especially in steel platform system
In the case that system load integrally improves and construction speed is accelerated, higher want is proposed to the bearing capacity of steel platform bracket lay-down location
It asks.During construction of super highrise building, steel form can play certain protective action in early stage, but after demoulding, mix
Solidifying soil is directly exposed in air, and the temperature and humidity condition of external environment directly affects the pouring quality of concrete, works as temperature
When lower, it is easy to produce temperature difference crack, when humidity is lower, it is easier to generate wetness control, internal moisture loss generates drying
It shrinks, causes crack.
The shortcomings that traditional curing method of steel platform bracket lay-down location, embodies as follows:
(1) by the way of traditional heated die plate curing concrete surface, on the one hand it is difficult to control concrete surface
Temperature, on the other hand this template operation is more troublesome, is unfavorable for constructing;Meanwhile in concrete early stage age, concrete
Hydration reaction heat release can improve the temperature of inside concrete, and therefore, the simple heating outside concrete will lead to temperature promotion
It is asynchronous, temperature difference is generated, thermal cracking is easy to produce;
(2) concrete strength is improved by the way of to the heating of internal reinforcing bar, on the one hand the concrete of large area can be added
Heat, the energy ratio for needing to expend is larger, meanwhile, the reinforcing bar around steel platform bracket lay-down location is heated, is operated number
Tired, difficulty of construction is big in Practical Project;
(3) when there are dry weather conditions, extraneous ambient humidity is relatively low, and the humidity of inside concrete compares
Height, therefore the case where be easy to appear the diffusion of concrete moisture outside portion, especially in steel platform bracket lay-down location, due to the external world
Contact area it is bigger, while it is internal directly contacted with the external world again, cause moisture escape phenomenon herein than more serious, when interior
Relative humidity decline in portion's is very fast, not only influences hydrated cementitious, is produced from dry-out phenomenon, at the same will lead in internal void moisture compared with
It is fast to reduce, cause microscopic void pressure to become larger, be easy to produce dry contraction, generates crack;
(4) since steel platform bracket lay-down location is embedded into the concrete wall of Core Walls Structure, traditional detection can not be applied
The rebound method of concrete strength, reisilometer can not detect the concrete strength on steel platform bracket lay-down location surface.
Summary of the invention
For the traditional curing method of existing steel platform bracket lay-down location, difficulty of construction is big, is also easy to produce thermal cracking, and
The problem of concrete strength on steel platform bracket lay-down location surface can not be detected.The object of the present invention is to provide a kind of steel platform oxen
Leg lay-down location concrete warming and humidifying intensity curing means and method, pointedly add the concrete of steel platform bracket lay-down location
Heat and/or humidification, not only increase the concrete strength of steel platform bracket lay-down location, and can prevent concrete from generating contraction
And crack, it ensure that the concrete pouring quality of steel platform bracket lay-down location.
The technical solution adopted by the present invention to solve the technical problems is: steel platform bracket lay-down location concrete warming and humidifying
Intensity curing means, it includes:
Intensity detecting device is set to the horizontal plane at the hole of the steel platform bracket lay-down location, is examined by the intensity
It surveys device and measures the real-time concrete strength that the steel platform bracket lay-down location is calculated in inside concrete velocity of wave;
Heating and temperature controlling device is vertically arranged to Core Walls Structure wall side and the covering steel platform bracket lay-down location hole week
Abutment wall body, for heating the concrete of steel platform bracket lay-down location hole periphery wall;
Humidification controls wet device, is set in the hole of the steel platform bracket lay-down location, for adjusting the steel platform ox
Air humidity around leg lay-down location;
At least one temperature and humidity sensing is arranged in the hole of the steel platform bracket lay-down location for multiple Temperature Humidity Sensors
At least one Temperature Humidity Sensor is arranged in device in the concrete walls body of the steel platform bracket lay-down location;
Control calculating center, be set in the hole of the steel platform bracket lay-down location, respectively with the heated for controlling temperature
Device, the humidification control wet device and multiple Temperature Humidity Sensor signal connections, and the control calculating center is for judging
Whether the real-time concrete strength of the steel platform bracket lay-down location reaches target value, and controls the heating and temperature controlling device, institute
It states humidification control wet device the concrete of steel platform bracket lay-down location hole periphery wall is heated and/or humidified, directly
Real-time concrete strength to the steel platform bracket lay-down location reaches target value.
Preferably, the intensity detecting device includes: to be installed on surpassing for steel platform bracket lay-down location hole horizontal plane
Intensity of acoustic wave detector, is set to the transmitting transducer of steel platform bracket lay-down location hole horizontal plane, and is set to described
The reception energy converter of metope on the outside of steel platform bracket lay-down location, and the transmitting transducer, the reception energy converter respectively with institute
State the connection of ultrasonic intensity detector.
Preferably, the heating and temperature controlling device includes:
Heat-conducting layer is posted and fixed in the outside metope of the steel platform bracket lay-down location, and the heat-conducting layer is equipped with
Reserving hole corresponding with the steel platform bracket lay-down location hole;
Heating layer is laid in the thermally conductive layer surface;
Thermal insulation layer is set to the outside of the heat-conducting layer and the heating layer;
Heater is connect with the heating layer, and the heater calculates center signal with the control and connect.
Preferably, the heat-conducting layer is made of aluminium sheet, and the heating layer is laid in described by the concatenated heat generating wire cable of multiple groups
Thermally conductive layer surface is constituted, and the thermal insulation layer is made of athermanous material.
Preferably, the humidification is controlled wet device and is included at least: ultrasonic humidifier and water box, the ultrasonic humidifier with
The control calculates center signal connection, wherein the ultrasonic humidifier includes at least atomizer and fan, the atomizer
Water in the water box is atomized by the ultrasonic wave higher-order of oscillation of sending, by controlling the air quantity of fan size and atomization speed
The size of degree control humidity.
Preferably, it further includes the shell being adapted with the steel platform bracket lay-down location hole, and the shell is by top plate
And three side plates connected to it are constituted, the intensity detecting device, the humidification control wet device and the control calculating center
It is fixed in the shell, the casing bolts are connected in the hole of the steel platform bracket lay-down location.
The present invention also provides a kind of steel platform bracket lay-down location concrete warming and humidifying intensity maintenance processes, and step is such as
Under:
S1: surveying concrete strength to ultrasonic instrument and carry out rating test, measure the velocity of wave of apparatus for concrete member curing process,
The relational expression of velocity of wave and concrete strength is established, and establishes concrete strength progress curve;
S2: in the concreting process of steel platform bracket lay-down location, at least one pre-buried temperature and humidity in concrete
Sensor, after the completion of concreting, in steel platform bracket lay-down location installation steel platform bracket lay-down location concrete heating
Intensity curing means is humidified, at least one Temperature Humidity Sensor is set in the hole of the steel platform bracket lay-down location, every
One period measured the velocity of wave v1, v2 ... during the steel platform bracket lay-down location concrete curing by intensity detecting device
Vi, using the relational expression of the step S1 velocity of wave and concrete strength obtained be calculated with velocity of wave v1, v2 ... vi is corresponding
Concrete strength f1, f2 ... fi, and judge whether the real-time concrete strength of the steel platform bracket lay-down location reaches described
Concrete strength target value corresponding to concrete strength progress curve in step S1;
S3: it controls wet device using the heating of control calculating center control heating and temperature controlling device or cooling, and/or control humidification and adds
It is wet, so that the real-time concrete strength of the steel platform bracket lay-down location reaches concrete strength progress curve in the step S1
Corresponding concrete strength target value.
Preferably, in the step S1, in the rating test that ultrasonic instrument surveys concrete strength, concrete structure is measured
Inside velocity of wave of the part at 1-7 days;It is flat according to the steel for calculating needs of integral steel platform mould bases in the step S2
Dummy cow leg lay-down location intensity calculates that it, in 1-5 days concrete strength progress curves, is then divided into multiple periods,
Each period is 2-3 hours, measures the wave in each period during the steel platform bracket lay-down location concrete curing
Fast v1, v2 ... vi.
Preferably, in the step S1, the velocity of wave v and concrete strength f of concretecRelational expression derive steps are as follows:
S11: coagulation is calculated according to concrete velocity of wave and the relational expression of time and concrete velocity of wave and the relational expression of ranging
Native velocity of wave v;
The relational expression of concrete velocity of wave and time are as follows:
Wherein, v is concrete velocity of wave (km/s);
liFor the ranging (mm) of ultrasonic instrument;
tiFor current time ultrasonic wave sound when read (μ s);
t0For ultrasonic wave sound when initial reading (μ s);
Concrete velocity of wave and the relational expression of ranging are as follows:
Wherein, liFor the ranging (mm) of ultrasonic instrument;
l1i、l2iFor ultrasonic instrument at a distance from concrete component edge (mm);
S12: the elastic modulus E of concrete is calculated according to the relational expression of concrete velocity of wave and elasticity modulus;
Wherein, v is concrete velocity of wave (km/s), is obtained by above-mentioned steps S11;
μ is the Poisson's ratio of concrete;
ρ is the density of concrete, and above-mentioned μ, ρ can be obtained by commercial instruments measurement;
S13: concrete strength f is obtained according to the relational expression of elasticity modulus and concrete strengthc;
Wherein, fcFor concrete strength;
E is the elasticity modulus that step S12 is calculated.
The present invention also provides a kind of steel platform bracket lay-down location concrete warming and humidifying intensity maintenance processes, and step is such as
Under:
S1: surveying concrete strength to ultrasonic instrument and carry out rating test, measure the velocity of wave of apparatus for concrete member curing process,
The relational expression of velocity of wave and concrete strength is established, and establishes concrete strength progress curve;
S2: in the concreting process of steel platform bracket lay-down location, at least one pre-buried temperature and humidity in concrete
Sensor, after the completion of concreting, in steel platform bracket lay-down location installation steel platform bracket lay-down location concrete heating
Intensity curing means is humidified, at least one Temperature Humidity Sensor is set in the hole of the steel platform bracket lay-down location;Pass through
Be set in steel platform bracket lay-down location hole Temperature Humidity Sensor measurement concrete outside temperature and humidity, and using at
Ripe degree formula obtains concrete strength;And/or the temperature in the concrete walls body by being disposed in proximity to steel platform bracket lay-down location
The temperature and humidity of humidity sensor measurement inside concrete obtains concrete strength using degree of hydration formula;Judge the steel
Whether the real-time concrete strength of platform bracket lay-down location reaches in the step S1 corresponding to concrete strength progress curve
Concrete strength target value;
S3: it controls wet device using the heating of control calculating center control heating and temperature controlling device or cooling, and/or control humidification and adds
It is wet, so that the real-time concrete strength of the steel platform bracket lay-down location reaches concrete strength progress curve in the step S1
Corresponding concrete strength target value.
Preferably, it in the step S2, is surveyed by the Temperature Humidity Sensor being set in steel platform bracket lay-down location hole
The temperature and humidity outside concrete is measured, maturity formula, the i.e. pass of concrete external temperature, humidity and concrete strength are utilized
It is that formula obtains concrete strength fc;
The relational expression of concrete external temperature, humidity and concrete strength is as follows:
Wherein, t0At the beginning of concrete strength development;
teFor the current time of concrete strength development;
fcFor current time teConcrete strength;
fc,uFor concrete compressive ultimate strength, it is the data that commerical ready-mixed concrete directly provides;
kTFor the model parameter (rate constant) for considering curing temperature and maintenance humidity influence;
Above-mentioned model parameter kTIt is as follows with temperature, the relational expression of humidity:
kT=A (h) × e(BT)
Wherein, kTFor the model parameter (rate constant) for considering curing temperature and maintenance humidity influence;
A (h) is the parameter for considering maintenance humidity, and h is current time teThe outside of steel platform bracket lay-down location concrete is wet
Degree;
B is constant;
T is current time teThe external temperature of steel platform bracket lay-down location concrete.
Preferably, the temperature in concrete walls body in the step S2, by being disposed in proximity to steel platform bracket lay-down location
The temperature and humidity of humidity sensor measurement inside concrete, using degree of hydration formula, i.e. concrete internal temperature, humidity and mixed
The relational expression of solidifying soil intensity obtains concrete strength fc;
The relational expression of concrete internal temperature, humidity and concrete strength is as follows:
Wherein, fc(α) is current time teConcrete strength;
fc,uFor concrete compressive ultimate strength;
α(te) it is current time teConcrete hydrating degree;
α0For the beginning degree of hydration of concrete;
αuFor the final degree of hydration of concrete;
A is constant;
The current time teConcrete hydrating degree α (te) and temperature, the relational expression of humidity it is as follows:
Wherein, α (te) it is current time teConcrete hydrating degree;
αecDegree of hydration when being begun to decline for inside concrete relative humidity;
tecEquivalent age when being begun to decline for inside concrete relative humidity;
RH is current time teThe relative humidity of inside concrete;
K, p are constant;
N is the nominal order of reaction.
Effect of the invention is that:
Steel platform bracket lay-down location concrete warming and humidifying intensity curing means of the present invention, including it is set to steel platform bracket
Intensity detecting device, heating and temperature controlling device, the humidification at lay-down location hole control wet device and control calculating center, wherein control meter
Calculation center controls wet device with heating and temperature controlling device, humidification respectively and multiple Temperature Humidity Sensor signals are connect, and passes through intensity detection
Device measures the inside velocity of wave of concrete and the real-time concrete strength of steel platform bracket lay-down location is calculated, or by mixed
The real-time concrete strength of steel platform bracket lay-down location is calculated in temperature and humidity inside and outside solidifying soil, and control calculating center judges that steel is flat
Whether the real-time concrete strength of dummy cow leg lay-down location reaches target value, and controls heating and temperature controlling device, the wet device pair of humidification control
The concrete of steel platform bracket lay-down location is heated and/or is humidified, until the real-time strong concrete of steel platform bracket lay-down location
Degree reaches target value;It by the concrete heating pointedly to steel platform bracket lay-down location and/or humidifies, not only increases steel
The concrete strength of platform bracket lay-down location, and can prevent concrete from generating contraction and crack, it ensure that steel platform bracket
The concrete pouring quality of lay-down location, thus the case where integral steel platform mould bases Integral Loading improves and construction speed shifts to an earlier date
Under, so that steel platform bracket lay-down location reaches scheduled bearing capacity;It is put down moreover, the present invention realizes steel by control calculating center
The automation control of dummy cow leg lay-down location concrete curing, flexible and convenient operation, working security is high, and improves work effect
Rate.
Steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process of the present invention, firstly, to ultrasound coagulation
Native intensity carries out rating test, establishes the relational expression and concrete strength progress curve of velocity of wave and concrete strength;In steel platform
After the concreting of bracket lay-down location is completed and installs steel platform bracket lay-down location concrete warming and humidifying intensity curing means,
Concrete velocity of wave is measured every a period, and corresponding concrete is calculated with the relational expression of concrete strength by velocity of wave
Intensity, control calculating center judge whether real-time concrete strength reaches strong concrete corresponding to concrete strength progress curve
Target value is spent, and controls heating and temperature controlling device heating or cooling, and/or control humidification controls wet device humidification and reaches concrete
Concrete strength target value corresponding to strength development curve, steel platform bracket lay-down location concrete warming and humidifying intensity of the present invention
Maintenance process is heated and/or is humidified by the concrete pointedly to steel platform bracket lay-down location, not only increases steel platform
The concrete strength of bracket lay-down location, and can prevent concrete from generating contraction and crack, it ensure that steel platform bracket is shelved
The concrete pouring quality at place, to make in the case where integral steel platform mould bases Integral Loading improves and construction speed shifts to an earlier date
It obtains steel platform bracket lay-down location and reaches scheduled bearing capacity.
Detailed description of the invention
Fig. 1 is that the schematic diagram of steel platform bracket lay-down location is reserved in the Core Walls Structure wall side of one embodiment of the invention;
Fig. 2 is that the steel platform bracket lay-down location concrete warming and humidifying intensity curing means of one embodiment of the invention is installed on
The structural schematic diagram of steel platform bracket lay-down location;
Fig. 3 is intensity in the steel platform bracket lay-down location concrete warming and humidifying intensity curing means of one embodiment of the invention
The structural schematic diagram of detection device;
Fig. 4 be one embodiment of the invention steel platform bracket lay-down location concrete warming and humidifying intensity curing means in heat
The structural schematic diagram of temperature regulating device;
Fig. 5 be one embodiment of the invention steel platform bracket lay-down location concrete warming and humidifying intensity curing means in heat
Temperature regulating device is installed on the schematic diagram on the outside of steel platform bracket lay-down location;
Fig. 6 is the structure of the steel platform bracket lay-down location concrete warming and humidifying intensity curing means of one embodiment of the invention
Schematic diagram;
Fig. 7 is the side view of Fig. 6.
Figure label is as follows:
Core Walls Structure wall 1;Steel platform bracket lay-down location 2;Pre-embedded bolt 3;Steel form 4;
Intensity detecting device 10;Ultrasonic intensity detector 11;Transmitting transducer 12;Receive energy converter 14;
Heating and temperature controlling device 20;Heat-conducting layer 21;Heating layer 22;Thermal insulation layer 23;
Humidification controls wet device 30;Atomizer 31;Water box 32;Fan 33;
Temperature Humidity Sensor 40;Control calculating center 50.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be noted that attached drawing is adopted
With very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention
Purpose.For sake of convenience, "upper" described below, "lower" are consistent with the upper and lower direction of attached drawing, but this can't be this hair
The limitation of bright technical solution.
Embodiment one: illustrate steel platform bracket lay-down location concrete warming and humidifying intensity maintenance of the present invention in conjunction with Fig. 1 to Fig. 7
Device, comprising:
Intensity detecting device 10 is set to the horizontal plane at the hole of steel platform bracket lay-down location 2, passes through intensity detecting device
10 measure the real-time concrete strength that steel platform bracket lay-down location 2 is calculated in inside concrete velocity of wave;
Heating and temperature controlling device 20 is vertically arranged to 1 side of Core Walls Structure wall and covering 2 hole of steel platform bracket lay-down location week
Abutment wall body, for heating the concrete of 2 hole periphery wall of steel platform bracket lay-down location;
Humidification controls wet device 30, is set in the hole of steel platform bracket lay-down location 2, shelves for adjusting steel platform bracket
Air humidity around place 2;
Multiple Temperature Humidity Sensors 40, wherein at least one temperature and humidity is set in the hole of steel platform bracket lay-down location 2 and is passed
At least one Temperature Humidity Sensor 40 is arranged in sensor 40 in the concrete walls body of steel platform bracket lay-down location 2;
Control calculating center 50, be set in the hole of steel platform bracket lay-down location 2, respectively with heating and temperature controlling device
20, humidification controls wet device 30 and the connection of 40 signal of multiple Temperature Humidity Sensors, and control calculating center 50 is for judging steel platform ox
Whether the real-time concrete strength of leg lay-down location 2 reaches target value, and it is right to control heating and temperature controlling device 20, the wet device 30 of humidification control
The concrete of 2 hole periphery wall of steel platform bracket lay-down location is heated and/or is humidified, until steel platform bracket lay-down location 2
Real-time concrete strength reach target value.
Steel platform bracket lay-down location concrete warming and humidifying intensity curing means of the present invention, including it is set to steel platform bracket
Intensity detecting device 10, heating and temperature controlling device 20, the humidification at 2 hole of lay-down location control wet device 30 and control calculating center 50,
In, wet device 30 and 40 signal of multiple Temperature Humidity Sensors are controlled with heating and temperature controlling device 20, humidification respectively in control calculating center 50
Connection, measures the inside velocity of wave of concrete by intensity detecting device 10 and the real-time of steel platform bracket lay-down location 2 is calculated
Concrete strength, or the real-time strong concrete of steel platform bracket lay-down location 2 is calculated by the temperature and humidity inside and outside concrete
Degree, control calculating center 50 judge whether the real-time concrete strength of steel platform bracket lay-down location 2 reaches target value, and control and add
Hot temperature regulating device 20, humidification control wet device 30 and the concrete of steel platform bracket lay-down location 2 are heated and/or humidified, until
The real-time concrete strength of steel platform bracket lay-down location 2 reaches target value;By pointedly to steel platform bracket lay-down location 2
Concrete heating and/or humidification, not only increase the concrete strength of steel platform bracket lay-down location 2, and can prevent coagulation
The raw contraction of local products and crack, ensure that the concrete pouring quality of steel platform bracket lay-down location 2, thus in integral steel platform mould bases
In the case that Integral Loading improves and construction speed shifts to an earlier date, so that steel platform bracket lay-down location 2 reaches scheduled bearing capacity;And
And the present invention realizes the automation control of 2 concrete curing of steel platform bracket lay-down location, operation by controlling calculating center 50
Flexibly and easily, working security is high, and improves work efficiency.
As shown in figure 3, intensity detecting device 10 includes: the ultrasound for being installed on 2 hole horizontal plane of steel platform bracket lay-down location
Intensity of wave detector is set to the transmitting transducer 12 of 2 hole horizontal plane of steel platform bracket lay-down location and is set to steel platform ox
The reception energy converter 14 of 2 outside metope of leg lay-down location, and transmitting transducer 12, reception energy converter 14 are examined with ultrasonic intensity respectively
Survey device connection.The inside velocity of wave of concrete is measured by ultrasonic intensity detector, and utilizes the pass of velocity of wave and concrete strength
It is the real-time concrete strength that formula obtains 2 surface of steel platform bracket lay-down location, easy to operate, accuracy is high, solves back
Play the problem of instrument can not detect the intensity on 2 surface of steel platform bracket lay-down location.
As shown in Fig. 2, Fig. 4 and Fig. 5, heating and temperature controlling device 20 includes: heat-conducting layer 21, is posted and fixed in steel platform ox
The outside metope of leg lay-down location 2, and heat-conducting layer 21 is equipped with reserving hole corresponding with 2 hole of steel platform bracket lay-down location;Hair
Thermosphere 22 is laid in 21 surface of heat-conducting layer;Thermal insulation layer 23 is set to the outside of heat-conducting layer 21 and heating layer 22;Heater,
It connect with heating layer 22, and heater is connect with control 50 signal of calculating center;When control calculating center 50 judgement needs pair
When 2 concrete of steel platform bracket lay-down location heats, control heater is started to work, and is directed to by heating layer 22, heat-conducting layer 21
Steel platform bracket lay-down location 2 is conducted heat to property, to efficiently control the curing temperature of concrete, and reduces construction
Difficulty mixes steel platform bracket lay-down location 2 convenient for construction personnel in addition, reserved opening is arranged in the heat-conducting layer 21 as substrate
Solidifying soil warming and humidifying intensity curing means bolt is fixed on hole, convenient for disassembly and assembly.
Above-mentioned heating layer 22 is laid in 21 surface of heat-conducting layer by the concatenated heat generating wire cable of multiple groups and constitutes, and heat-conducting layer 21 is by aluminium sheet
It is made, so that heat conduction is uniformly, thermal insulation layer 23 is made of athermanous chemical material, such as cystosepiment, prevents and block heat
Amount transmitting, heater use rechargeable constant temperature current heater, and high altitude operation is more convenient.
As shown in Figure 6 and Figure 7, it includes: ultrasonic humidifier that humidification, which controls wet device 30, water box 32 and every wet plate (in figure not
Show), ultrasonic humidifier is connect with control 50 signal of calculating center, wherein ultrasonic humidifier includes atomizer 31, fan
33 and circuit board, the ultrasonic wave higher-order of oscillation of atomizer 31 water in water box 32 is atomized, generate diameter there was only 1-5 μm
Ultramicron, and particle is uniform, can be suspended in air for a long time, by the speed for controlling fan 33 air force and atomization
It spends to control the size of humidity, the relative humidity of 2 surrounding air of steel platform bracket lay-down location is measured by Temperature Humidity Sensor 40,
The relative humidity of air is adjusted by control calculating center 50.
As shown in Figure 1, it further includes the shell being adapted with 2 hole of steel platform bracket lay-down location, shell is by inclined top
Plate and three side plates connected to it are constituted, i.e., shell is not provided with horizonal base plate, and intensity detecting device 10, humidification control wet device 30
And control calculating center 50 is fixed in shell, intensity detecting device 10 need to directly be contacted with the horizontal surface concrete in hole, therefore,
Shell does not set bottom plate;Pre-embedded bolt 3 is arranged in 2 hole top of steel platform bracket lay-down location, and shell can be bolted in steel platform
In the hole of bracket lay-down location 2, it to be used for 2 concrete warming and humidifying intensity curing means of steel platform fixing bracket lay-down location.
Embodiment two: illustrate steel platform bracket lay-down location concrete warming and humidifying intensity maintenance of the present invention in conjunction with Fig. 1 to Fig. 7
Method, the specific steps are as follows:
S1: concrete strength is surveyed to ultrasonic instrument and carries out rating test, measures the velocity of wave of apparatus for concrete member curing process
V establishes velocity of wave v and concrete strength fcRelational expression, and establish concrete strength progress curve;
S2: in the concreting process of steel platform bracket lay-down location 2, in concrete at least one pre-buried use
The Temperature Humidity Sensor 40 for setting transmitting signal, after the completion of concreting, in steel platform bracket lay-down location 2 installation such as embodiment one
The 2 concrete warming and humidifying intensity curing means of steel platform bracket lay-down location is filled every a period by intensity detection
It sets 10 and measures velocity of wave v1, v2 ... vi during 2 concrete curing of steel platform bracket lay-down location, the velocity of wave obtained using step S1
V and concrete strength fcRelational expression be calculated with velocity of wave v1, v2 ... vi corresponding concrete strength f1, f2 ... fi, and
It is right to judge whether the real-time concrete strength vi of steel platform bracket lay-down location 2 reaches concrete strength progress curve institute in step S1
The concrete strength target value answered;
S3: the heating of heating and temperature controlling device 20 or cooling are controlled using control calculating center 50, and/or control humidification controls wet dress
30 humidifications are set, so that the real-time concrete strength fi of steel platform bracket lay-down location 2 reaches concrete strength development song in step S1
Concrete strength target value corresponding to line.
Steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process of the present invention, firstly, to ultrasound coagulation
Native intensity carries out rating test, establishes velocity of wave v and concrete strength fcRelational expression and concrete strength progress curve;In steel
The concreting of platform bracket lay-down location 2 is completed and installs the maintenance of 2 concrete warming and humidifying intensity of steel platform bracket lay-down location
After device, concrete velocity of wave is measured every a period, and pass through velocity of wave v and concrete strength fcRelational expression phase is calculated
The concrete strength answered, it is right that control calculating center 50 judges whether real-time concrete strength reaches concrete strength progress curve institute
The concrete strength target value answered, and control heating and temperature controlling device 20 and heat or cool down, and/or control humidification is controlled wet device 30 and added
It is wet to reach concrete strength target value corresponding to concrete strength progress curve, steel platform bracket lay-down location 2 of the present invention
Concrete warming and humidifying intensity maintenance process is heated and/or is added by the concrete pointedly to steel platform bracket lay-down location 2
It is wet, the concrete strength of steel platform bracket lay-down location 2 is not only increased, and can prevent concrete from generating contraction and crack,
It ensure that the concrete pouring quality of steel platform bracket lay-down location 2, to improve and apply in integral steel platform mould bases Integral Loading
In the case that work progress shifts to an earlier date, so that steel platform bracket lay-down location 2 reaches scheduled bearing capacity.
In above-mentioned steps S1, the velocity of wave v and concrete strength f of concretecRelational expression derive steps are as follows:
S11: coagulation is calculated according to concrete velocity of wave and the relational expression of time and concrete velocity of wave and the relational expression of ranging
Native velocity of wave v;
The relational expression of concrete velocity of wave and time are as follows:
Wherein, v is concrete velocity of wave (km/s);
liFor the ranging (mm) of ultrasonic instrument;
tiFor current time ultrasonic wave sound when read (μ s);
t0For ultrasonic wave sound when initial reading (μ s);
Concrete velocity of wave and the relational expression of ranging are as follows:
Wherein, liFor the ranging (mm) of ultrasonic instrument;
l1i、l2iFor ultrasonic instrument at a distance from concrete component edge (mm);
The relational expression of above-mentioned concrete velocity of wave and time, ranging come from " CECS_02:2005 Ultrasonic Resilience Comprehensive Method in Construction detection
Concrete strength technical regulation ".
S12: the elastic modulus E of concrete is calculated according to the relational expression of concrete velocity of wave and elasticity modulus;
Wherein, v is concrete velocity of wave (km/s), is obtained by above-mentioned steps S11;
μ is the Poisson's ratio of concrete;
ρ is the density of concrete, and above-mentioned μ, ρ can be obtained by commercial instruments measurement;
S13: concrete strength f is obtained according to the relational expression of elasticity modulus and concrete strengthc;
Wherein, fcFor concrete strength;
E is the elasticity modulus that step S12 is calculated.
To sum up, this method utilizes between concrete velocity of wave and the relational expression of time and concrete velocity of wave and the relational expression of ranging
It connects and derives concrete strength, since concrete velocity of wave, time and ranging can utilize above-mentioned relation by existing apparatus measures
Formula derives concrete strength indirectly, convenient and easy, and accuracy is high, solves reisilometer and can not detect steel platform bracket and shelves
The problem of locating 2 surface strength.
In above-mentioned steps S1, in the rating test that ultrasonic instrument surveys concrete strength, concrete component is measured in 1-7
It inside velocity of wave;In step S2, according to steel platform bracket lay-down location the last 2 for calculating needs of integral steel platform mould bases
Degree, calculates its concrete strength progress curve at 1-5 days, is then divided into multiple periods, and each period is 2-3
Hour, i.e., the wave during measuring 2 concrete curing of steel platform bracket lay-down location by intensity detecting device 10 every 2-3 hours
Fast v1, v2 ... vi.
Embodiment three: unlike implementation two, in above-mentioned steps S2, by being set to 2 hole of steel platform bracket lay-down location
Temperature Humidity Sensor 40 in mouthful measures the temperature and humidity outside concrete, using maturity formula, i.e., temperature outside concrete
The relational expression of degree, humidity and concrete strength obtains concrete strength fc;
The relational expression of concrete external temperature, humidity and concrete strength is as follows:
Wherein, t0At the beginning of concrete strength development;
teFor the current time of concrete strength development;
fcFor current time teConcrete strength;
fc,uFor concrete compressive ultimate strength, it is the data that commerical ready-mixed concrete directly provides;
kTFor the model parameter (rate constant) for considering curing temperature and maintenance humidity influence;
Above-mentioned model parameter kTIt is as follows with temperature, the relational expression of humidity:
kT=A (h) × e(BT)
Wherein, kTFor the model parameter (rate constant) for considering curing temperature and maintenance humidity influence;
A (h) is the parameter for considering maintenance humidity, and h is current time teThe outside of 2 concrete of steel platform bracket lay-down location is wet
Degree;
B is constant;
T is current time teThe external temperature of 2 concrete of steel platform bracket lay-down location.
To sum up, method of the invention is surveyed by the Temperature Humidity Sensor 40 being set in 2 hole of steel platform bracket lay-down location
The temperature and humidity outside concrete is measured, and derives concrete strength indirectly using maturity formula, outside concrete
Temperature, humidity can by Temperature Humidity Sensor 40 measure obtain, derive concrete indirectly using above-mentioned maturity formula
Intensity, it is convenient and easy, and accuracy is high, solves the problems, such as that reisilometer can not detect 2 surface strength of steel platform bracket lay-down location.
Example IV: it unlike embodiment three, in above-mentioned steps S2, is shelved by being disposed in proximity to steel platform bracket
Temperature Humidity Sensor 40 in the concrete walls body at place 2 measures the temperature and humidity of inside concrete, using degree of hydration formula, i.e.,
The relational expression of concrete internal temperature, humidity and concrete strength obtains concrete strength fc;
The relational expression of concrete internal temperature, humidity and concrete strength is as follows:
Wherein, fc(α) is current time teConcrete strength;
fc,uFor concrete compressive ultimate strength;
α(te) it is current time teConcrete hydrating degree;
α0For the beginning degree of hydration of concrete;
αuFor the final degree of hydration of concrete;
A is constant;
Above-mentioned current time teConcrete hydrating degree α (te) and temperature, the relational expression of humidity it is as follows:
Wherein, α (te) it is current time teConcrete hydrating degree;
αecDegree of hydration when being begun to decline for inside concrete relative humidity;
tecEquivalent age when being begun to decline for inside concrete relative humidity;
RH is current time teThe relative humidity of inside concrete;
K, p are constant;
N is the nominal order of reaction.
To sum up, warm and humid in the concrete walls body of method of the invention by being disposed in proximity to steel platform bracket lay-down location 2
It spends sensor 40 and measures the temperature and humidity of inside concrete, and derive concrete strength indirectly using degree of hydration formula, by
It can be measured and be obtained by Temperature Humidity Sensor 40 in temperature, the humidity of inside concrete, derived indirectly using degree of hydration formula
Concrete strength out, convenient and easy, and accuracy is high, solving reisilometer, can not to detect 2 surfaces of steel platform bracket lay-down location strong
The problem of spending.
Embodiment five: unlike embodiment three and example IV, in above-mentioned steps S2, inside concrete temperature is first read
The data of humidity sensor 40 measure concrete velocity of wave by intensity detecting device 10 and calculate if internal temperature is relatively low
Real-time concrete strength is obtained, while the Temperature Humidity Sensor 40 by being set in 2 hole of steel platform bracket lay-down location measures
Temperature and humidity outside concrete obtains concrete strength using maturity formula, and by being disposed in proximity to steel platform ox
Temperature Humidity Sensor 40 in the concrete walls body of leg lay-down location 2 measures the temperature and humidity of inside concrete, utilizes degree of hydration
Formula obtains concrete strength, is modified to obtain immediate data to the data of concrete strength;In step S3, benefit
Heating and temperature controlling device 20 is controlled with control calculating center 50 to heat, and keeps the promotion of walking unhurriedly of concrete internal and external temperature, it cannot be primary
Property improve too high-temperature, while wet device 30 is controlled by humidification, steel platform bracket lay-down location 2 is humidified, every 2-3 hours
The concrete strength for measuring the temperature and humidity and steel platform bracket lay-down location 2 inside and outside concrete, can be slightly if strength development is too fast
Edge down low temperature, prevents because of the excessively high bring cracking risk of temperature, when strength development each time is excessively slow and too fast, all
By calculate intensity difference be modified, thus guarantee 2 concrete of steel platform bracket lay-down location can reach predetermined strength and
Can safely and effectively it develop.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to scope of the claims.
Claims (12)
1. steel platform bracket lay-down location concrete warming and humidifying intensity curing means characterized by comprising
Intensity detecting device is set to the horizontal plane at the hole of the steel platform bracket lay-down location, is filled by the intensity detection
It sets and measures the real-time concrete strength that the steel platform bracket lay-down location is calculated in inside concrete velocity of wave;
Heating and temperature controlling device is vertically arranged to Core Walls Structure wall side and covering steel platform bracket lay-down location hole perimeter walls
Body, for heating the concrete of steel platform bracket lay-down location hole periphery wall;
Humidification controls wet device, is set in the hole of the steel platform bracket lay-down location, puts for adjusting the steel platform bracket
Set the air humidity around place;
At least one Temperature Humidity Sensor is arranged in the hole of the steel platform bracket lay-down location, leans on for multiple Temperature Humidity Sensors
At least one Temperature Humidity Sensor is set in the concrete walls body of the nearly steel platform bracket lay-down location;
Control calculating center, be set in the hole of the steel platform bracket lay-down location, respectively with the heating and temperature controlling device,
The humidification controls wet device and multiple Temperature Humidity Sensor signal connections, and the control calculating center is for judging the steel
Whether the real-time concrete strength of platform bracket lay-down location reaches target value, and controls the heating and temperature controlling device, the humidification
It controls wet device the concrete of steel platform bracket lay-down location hole periphery wall is heated and/or humidified, until described
The real-time concrete strength of steel platform bracket lay-down location reaches target value.
2. steel platform bracket lay-down location concrete warming and humidifying intensity curing means according to claim 1, feature exist
In the intensity detecting device includes: the ultrasonic intensity detection for being installed on steel platform bracket lay-down location hole horizontal plane
Device, is set to the transmitting transducer of steel platform bracket lay-down location hole horizontal plane, and is set to the steel platform bracket and puts
Set place outside metope reception energy converter, and the transmitting transducer, the reception energy converter respectively with the ultrasonic intensity
Detector connection.
3. steel platform bracket lay-down location concrete warming and humidifying intensity curing means according to claim 1, feature exist
In the heating and temperature controlling device includes:
Heat-conducting layer is posted and fixed in the outside metope of the steel platform bracket lay-down location, and the heat-conducting layer is equipped with and institute
State the corresponding reserving hole in steel platform bracket lay-down location hole;
Heating layer is laid in the thermally conductive layer surface;
Thermal insulation layer is set to the outside of the heat-conducting layer and the heating layer;
Heater is connect with the heating layer, and the heater calculates center signal with the control and connect.
4. steel platform bracket lay-down location concrete warming and humidifying intensity curing means according to claim 3, feature exist
In: the heat-conducting layer is made of aluminium sheet, and the heating layer is laid in the thermally conductive layer surface structure by the concatenated heat generating wire cable of multiple groups
At the thermal insulation layer is made of athermanous material.
5. steel platform bracket lay-down location concrete warming and humidifying intensity curing means according to claim 1, feature exist
In the humidification is controlled wet device and included at least: ultrasonic humidifier and water box, the ultrasonic humidifier and the control calculate
Center signal connection, wherein the ultrasonic humidifier includes at least atomizer and fan, the ultrasonic wave that the atomizer issues
Water in the water box is atomized by the higher-order of oscillation, controls humidity by controlling the air quantity of fan size and atomization speed
Size.
6. steel platform bracket lay-down location concrete warming and humidifying intensity curing means according to claim 1, feature exist
In it further includes the shell being adapted with the steel platform bracket lay-down location hole, and the shell is by top plate and connected to it
Three side plates are constituted, and the intensity detecting device, the humidification control wet device and the shell is fixed at the control calculating center
In vivo, the casing bolts are connected in the hole of the steel platform bracket lay-down location.
7. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process, which is characterized in that steps are as follows:
S1: concrete strength is surveyed to ultrasonic instrument and carries out rating test, measures the velocity of wave of apparatus for concrete member curing process, is established
The relational expression of velocity of wave and concrete strength, and establish concrete strength progress curve;
S2: in the concreting process of steel platform bracket lay-down location, at least one pre-buried temperature and humidity sensing in concrete
Device after the completion of concreting, installs steel platform bracket lay-down location concrete warming and humidifying in the steel platform bracket lay-down location
At least one Temperature Humidity Sensor is arranged in the hole of the steel platform bracket lay-down location in intensity curing means, every for the moment
Between section velocity of wave v1, v2 ... the vi during the steel platform bracket lay-down location concrete curing measured by intensity detecting device,
Using the relational expression of the step S1 velocity of wave and concrete strength obtained be calculated with velocity of wave v1, v2 ... vi is corresponding mixed
Solidifying soil intensity f1, f2 ... fi, and judge whether the real-time concrete strength of the steel platform bracket lay-down location reaches the step
Concrete strength target value corresponding to concrete strength progress curve in S1;
S3: controlling wet device humidification using the heating of control calculating center control heating and temperature controlling device or cooling, and/or control humidification,
So that the real-time concrete strength of the steel platform bracket lay-down location reaches concrete strength progress curve institute in the step S1
Corresponding concrete strength target value.
8. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process according to claim 7, feature exist
In: in the step S1, in the rating test that ultrasonic instrument surveys concrete strength, concrete component is measured at 1-7 days
Internal velocity of wave;In the step S2, shelved according to the steel platform bracket for calculating needs of integral steel platform mould bases
Locate intensity, calculates its concrete strength progress curve at 1-5 days, be then divided into multiple periods, each period
It is 2-3 hours, measures velocity of wave v1, v2 ... in each period during the steel platform bracket lay-down location concrete curing
vi。
9. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process according to claim 7, feature exist
In, in the step S1, the velocity of wave v and concrete strength f of concretecRelational expression derive steps are as follows:
S11: concrete wave is calculated according to concrete velocity of wave and the relational expression of time and concrete velocity of wave and the relational expression of ranging
Fast v;
The relational expression of concrete velocity of wave and time are as follows:
Wherein, v is concrete velocity of wave (km/s);
liFor the ranging (mm) of ultrasonic instrument;
tiFor current time ultrasonic wave sound when read (μ s);
t0For ultrasonic wave sound when initial reading (μ s);
Concrete velocity of wave and the relational expression of ranging are as follows:
Wherein, liFor the ranging (mm) of ultrasonic instrument;
l1i、l2iFor ultrasonic instrument at a distance from concrete component edge (mm);
S12: the elastic modulus E of concrete is calculated according to the relational expression of concrete velocity of wave and elasticity modulus;
Wherein, v is concrete velocity of wave (km/s), is obtained by above-mentioned steps S11;
μ is the Poisson's ratio of concrete;
ρ is the density of concrete;
S13: concrete strength f is obtained according to the relational expression of elasticity modulus and concrete strengthc;
Wherein, fcFor concrete strength;
E is the elasticity modulus that step S12 is calculated.
10. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process, which is characterized in that steps are as follows:
S1: concrete strength is surveyed to ultrasonic instrument and carries out rating test, measures the velocity of wave of apparatus for concrete member curing process, is established
The relational expression of velocity of wave and concrete strength, and establish concrete strength progress curve;
S2: in the concreting process of steel platform bracket lay-down location, at least one pre-buried temperature and humidity sensing in concrete
Device after the completion of concreting, installs steel platform bracket lay-down location concrete warming and humidifying in the steel platform bracket lay-down location
At least one Temperature Humidity Sensor is arranged in the hole of the steel platform bracket lay-down location in intensity curing means;Pass through setting
Temperature and humidity outside the Temperature Humidity Sensor measurement concrete in steel platform bracket lay-down location hole, and utilize maturity
Formula obtains concrete strength;And/or the temperature and humidity in the concrete walls body by being disposed in proximity to steel platform bracket lay-down location
The temperature and humidity of sensor measurement inside concrete obtains concrete strength using degree of hydration formula;Judge the steel platform
Whether the real-time concrete strength of bracket lay-down location reaches coagulation corresponding to concrete strength progress curve in the step S1
Native intensity targets value;
S3: controlling wet device humidification using the heating of control calculating center control heating and temperature controlling device or cooling, and/or control humidification,
So that the real-time concrete strength of the steel platform bracket lay-down location reaches concrete strength progress curve institute in the step S1
Corresponding concrete strength target value.
11. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process according to claim 10, feature
It is: in the step S2, is measured outside concrete by the Temperature Humidity Sensor being set in steel platform bracket lay-down location hole
The temperature and humidity in portion, using maturity formula, i.e. the relational expression of concrete external temperature, humidity and concrete strength obtains mixed
Solidifying soil intensity fc;
The relational expression of concrete external temperature, humidity and concrete strength is as follows:
Wherein, t0At the beginning of concrete strength development;
teFor the current time of concrete strength development;
fcFor current time teConcrete strength;
fc,uFor concrete compressive ultimate strength, it is the data that commerical ready-mixed concrete directly provides;
kTFor the model parameter for considering curing temperature and maintenance humidity influence;
Above-mentioned model parameter kTIt is as follows with temperature, the relational expression of humidity:
kT=A (h) × e(BT)
Wherein, kTFor the model parameter for considering curing temperature and maintenance humidity influence;
A (h) is the parameter for considering maintenance humidity, and h is current time teThe outer moisture of steel platform bracket lay-down location concrete;
B is constant;
T is current time teThe external temperature of steel platform bracket lay-down location concrete.
12. steel platform bracket lay-down location concrete warming and humidifying intensity maintenance process according to claim 10, feature
It is: the Temperature Humidity Sensor in concrete walls body in the step S2, by being disposed in proximity to steel platform bracket lay-down location
The temperature and humidity that measures inside concrete, using degree of hydration formula, i.e. concrete internal temperature, humidity and concrete strength
Relational expression obtains concrete strength fc;
The relational expression of concrete internal temperature, humidity and concrete strength is as follows:
Wherein, fc(α) is current time teConcrete strength;
fc,uFor concrete compressive ultimate strength;
α(te) it is current time teConcrete hydrating degree;
α0For the beginning degree of hydration of concrete;
αuFor the final degree of hydration of concrete;
A is constant;
The current time teConcrete hydrating degree α (te) and temperature, the relational expression of humidity it is as follows:
Wherein, α (te) it is current time teConcrete hydrating degree;
αecDegree of hydration when being begun to decline for inside concrete relative humidity;
tecEquivalent age when being begun to decline for inside concrete relative humidity;
RH is current time teThe relative humidity of inside concrete;
K, p are constant;
N is the nominal order of reaction.
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